Alert archive / Kentucky / Flash Flood Warnings in 2012

Flash Flood Warning 42, NWS Jackson, KY

August 6, 2012Pike County, Kentucky

NWS Jackson, KY issued this flash flood warning at Aug 6, 2012, 9:11 AM EDT for Pike County, Kentucky. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 6, 2012, 9:11 AM EDT (13:11 UTC)
Expired
Aug 6, 2012, 12:00 PM EDT
In force
3 hr
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Flood severity
None

County Pike County, KY

The radar

The Charleston,WV radar (KRLX), 89 km from the middle of the area, began a volume at 13:13 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 1.2 hours before the alert went out and 242 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Roanoke, VA at 12:00Z on 2012-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 422 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 12:00Z on 2012-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
422 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
656 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
54 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

427 
WGUS53 KJKL 061311
FFWJKL
KYC195-061600-
/O.NEW.KJKL.FF.W.0042.120806T1311Z-120806T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON KY
911 AM EDT MON AUG 6 2012

THE NATIONAL WEATHER SERVICE IN JACKSON KY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN PIKE COUNTY IN SOUTHEAST KENTUCKY...

* UNTIL NOON EDT

* AT 909 AM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED SLOW
  MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED    
  AREA. RAINFALL OF TWO TO FOUR INCHES WILL FALL IN THIS AREA AND    
  WITH CREEKS AND STREAMS ALREADY AT BANKFULL FLASH FLOODING WILL BE 
  POSSIBLE. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  AFLEX...BELFRY...BOARD TREE...BUSKIRK...CANADA...FOREST HILLS...
  HARDY...HUDDY...JAMBOREE...MAJESTIC...MCANDREWS...PHELPS...
  SIDNEY...SOUTH WILLIAMSON...TURKEY CREEK AND WOODMAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...
COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND
OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.

&&

LAT...LON 3749 8211 3753 8237 3769 8237 3770 8230
      3766 8226 3767 8224 3763 8221 3763 8219
      3765 8220 3765 8218 3760 8215 3759 8212
      3756 8213 3756 8207 3751 8204

$$

GREIF
1 follow-up statement
097 
WGUS73 KJKL 061441
FFSJKL

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
1041 AM EDT MON AUG 6 2012

KYC195-061600-
/O.CON.KJKL.FF.W.0042.000000T0000Z-120806T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIKE KY-
1041 AM EDT MON AUG 6 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHEASTERN PIKE COUNTY
UNTIL NOON EDT...

AT 1038 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL HAD MOVED ACROSS THE WARNED 
AREA DROPPING BETWEEN TWO AND THREE INCHES OF RAIN. ADDITIONAL 
SHOWERS WILL LEAVE BEHIND ANOTHER HALF TO ONE INCH OF RAIN THROUGH 
NOON EDT. 

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
AFLEX...BELFRY...BOARD TREE...BUSKIRK...CANADA...FOREST HILLS... 
HARDY...HUDDY...JAMBOREE...MAJESTIC...MCANDREWS...PHELPS...SIDNEY... 
SOUTH WILLIAMSON...TURKEY CREEK AND WOODMAN. IN ADDITION...THE 
FOLLOWING CREEKS AND STREAMS MAY EXPERIENCE FLASH FLOODING...POND 
CREEK...BLACKBERRY FORK AND BIG CREEK. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS
AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING
AREAS ARE ALSO SUBJECT TO FLOODING.

&&

LAT...LON 3749 8211 3753 8237 3769 8237 3770 8230
      3766 8226 3767 8224 3763 8221 3763 8219
      3765 8220 3765 8218 3760 8215 3759 8212
      3756 8213 3756 8207 3751 8204

$$

GREIF

The office that day

Everything else NWS Jackson, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 6, 2:14 AM EDTAreal Flood AdvisoryJKLBath99 min
Aug 6, 6:26 AM EDTAreal Flood AdvisoryJKLPike2 hr
Aug 6, 7:16 AM EDTAreal Flood AdvisoryJKLMcCreary, Wayne, Whitley5 hr
Aug 6, 9:04 AM EDTAreal Flood AdvisoryJKLFloyd, Pike3 hr
Aug 6, 11:53 AM EDTFlash Flood WarningJKLPike3 hr
Aug 6, 12:06 PM EDTAreal Flood AdvisoryJKLFloyd, Pike3 hr
Aug 6, 12:28 PM EDTFlash Flood WarningJKLFloyd, Pike4 hr
Aug 6, 12:38 PM EDTAreal Flood AdvisoryJKLBreathitt, Floyd, Knott, Magoffin2 hr
Aug 6, 2:59 PM EDTAreal Flood WarningJKLPike3 hr

Nearby

Flash Flood Warnings in Kentucky, 2012Every flash flood warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.